JP4450331B2 - Lighting device - Google Patents

Lighting device Download PDF

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Publication number
JP4450331B2
JP4450331B2 JP2008049422A JP2008049422A JP4450331B2 JP 4450331 B2 JP4450331 B2 JP 4450331B2 JP 2008049422 A JP2008049422 A JP 2008049422A JP 2008049422 A JP2008049422 A JP 2008049422A JP 4450331 B2 JP4450331 B2 JP 4450331B2
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JP
Japan
Prior art keywords
light emitting
lighting device
frames
frame
aperture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2008049422A
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Japanese (ja)
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JP2009206028A (en
Inventor
竜太 園部
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財団法人山形県産業技術振興機構
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Priority to JP2008049422A priority Critical patent/JP4450331B2/en
Publication of JP2009206028A publication Critical patent/JP2009206028A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00Protecting lighting devices from damage
    • F21V15/01Housings, e.g. material or assembling of housing parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/04Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/005Supporting, suspending, or attaching arrangements for lighting devices; Hand grips for several lighting devices in an end-to-end arrangement, i.e. light tracks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00Planar light sources
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]
    • F21Y2115/15Organic light-emitting diodes [OLED]

Description

  The present invention relates to an illumination device using a surface-emitting light source represented by, for example, an organic EL (electroluminescence) element.

  The organic EL element is driven by a low direct current voltage, has high luminous efficiency, can be reduced in weight and thickness, and has the property of hardly generating heat. Therefore, it is used for a flat panel display (FPD) in some portable devices and the like, and there is also provided a configuration in which the element is used as a surface light source, for example, as a backlight of a liquid crystal display element.

  The organic EL element can obtain R (red), G (green), B (blue) and other luminescent colors by selecting the material used for the EL luminescent layer. In addition, by combining two or more kinds of emission colors, it becomes possible to obtain white or an emission color close to this. Therefore, by configuring the organic EL element as a surface light source (light emitting panel), for example, it can be used as a light source for decoration or a highly efficient light source for illuminating a room or the like.

Patent Document 1 shown below discloses a ceiling-mounted illumination device that is formed into a circular or ring-shaped surface light emitter using the organic EL element described above.
JP 2007-173424 A

  By the way, according to the illumination device disclosed in Patent Document 1 described above, it is an object to provide an illumination device that takes advantage of the characteristics of the organic EL element described above and emits light to the edge without the outer frame.

  For this purpose, an engaging portion that is fitted to a hook ceiling attached to the ceiling portion is provided in the central portion of the lighting device. In Patent Document 1, the light-emitting portion of the organic EL element formed in a ring shape may be a single ring shape or divided into a plurality of narrow ring shapes, and further from the center. It is described that the light emitting part may be formed so as to extend radially.

  However, in the illumination device described above, it is only suggested that the light emission pattern is devised on the flat light emission surface. It will be a thing. Therefore, it is impossible to bring out a gorgeous effect or the like in the illumination.

  The present invention has been made paying attention to the above-mentioned problems, and by arranging a large number of surface light emitters typified by organic EL elements in a specific form, a high-class feeling and a three-dimensional feeling can be obtained. It is an object of the present invention to provide a lighting device that can bring out the interior with a chandelier-like atmosphere.

  The lighting device according to the present invention, which has been made to solve the above-described problems, includes a light emitting portion having a first aperture formed by annularly connecting a plurality of flat frames on which surface light emitters are mounted, and A second plate formed by circumscribing a plurality of plate-like frames attached to and circumscribing the periphery of each frame forming the light emitting portion having the first diameter and having a surface light emitter mounted thereon. A light emitting part having a plurality of apertures including at least a light emitting part having a diameter is provided.

  In this case, it is desirable that the surface light emitter side in each frame forming the light emitting portion of each aperture is configured to form a dome shape. Preferably, the number of frames constituting the light emitting portions of the respective apertures is set to the same number in the light emitting portions of the respective apertures.

  And in preferable embodiment, it is comprised by the light emission part of the 1st-3rd aperture, each said flame | frame which forms the light emission part of each aperture is made into square shape, respectively, and the corners which each frame opposes each other By being connected in a ring shape, the light emitting portions having the first to third diameters are formed. And it is desirable that the surface light emitter mounted on one surface of each flat frame is composed of an organic EL element.

  According to the illuminating device described above, the flat frame on which the surface light emitters are mounted are connected to each other in an annular manner to form a light emitting portion with one aperture, and similarly, a plurality of light emitting portions with other apertures are concentric. The configuration is formed in a shape. Therefore, for example, a stainless steel plate is used as the flat frame constituting the light emitting portion of each aperture, and by adding decoration processing such as hairline processing, it has an atmosphere like a chandelier with a sense of quality and profoundness. A lighting device can be provided.

  In addition, the mounting surface of the surface light emitters in each frame is arranged so as to form a dome shape, so that a more three-dimensional effect can be created, and a good production effect and atmosphere creation with gorgeous interior characteristics It can be finished into a lighting device that can.

  And by using an organic EL element as a surface light emitter attached to each frame described above, it is possible to obtain high luminous efficiency without heat generation by a low-voltage driving power source, and conventional fluorescent lamps, light bulbs, etc. An illuminating device that can obtain an excellent decorative effect as compared with an image of an illuminating device using a luminaire can be realized.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a lighting device according to the present invention will be described based on embodiments shown in the drawings. 1 to 4 show an overall configuration of the lighting device according to the present invention when applied to a ceiling hanging type. FIG. 1 is a front view, and FIG. 2 is a perspective view as seen from obliquely below. 3 is a bottom view, and FIG. 4 is a top view.

  Below, the structure of each part which showed the same part with the same code | symbol is each demonstrated referring a code | symbol. In each of the drawings described below, in order to avoid complication, only each representative part is indicated by a reference numeral, and a part of the reference numeral is appropriately omitted depending on the figure.

  Reference numeral 1 denotes an illuminating device according to the present invention, and the illuminating device is suspended by three wires 9 having one end attached to a ceiling surface (not shown) as shown in FIG. The illuminating device 1 is configured such that light emitting portions having respective apertures formed by connecting a plurality of flat frame frames on which surface light emitters are mounted to each other in an annular shape are concentrically connected.

  That is, in this embodiment, the light emitting portions having the first to third apertures are concentrically connected, and reference numeral 2 denotes a flat plate constituting the light emitting portion having the first aperture in the innermost circumference. One of the frames is shown. Reference numeral 3 designates one of the flat plate-shaped frames constituting the light emitting part having the second diameter formed outside the light emitting part having the first diameter, and reference numeral 4 designates light emission having the second diameter. 1 shows one of flat plate-like frames constituting a light emitting part having a third aperture formed on the outer side of the part.

  The outer shapes of the respective frames constituting the light emitting portions having the first to third diameters are substantially square. In the light emitting portions having the first to third diameters, the same number of 12 frames are respectively provided. It is used. Therefore, the outer shape of the frame 2 constituting the light emitting portion having the first diameter which is the innermost circumference is minimized, and the outer shapes of the frames 3 and 4 constituting the light emitting portions having the second and third diameters are sequentially changed. Molded to be large.

  In addition, each of the frames 2 constituting the light emitting portion having the first diameter has the light emitting portion having the first diameter formed by connecting the opposing corner portions in an annular shape. In addition, each frame 3 constituting the light emitting portion having the second diameter is formed such that the light emitting portions having the second diameter are formed by connecting the opposite corner portions in a ring shape. They are connected at the corners of the opposing frames 2 and 3 so as to circumscribe the periphery of each of the frames 2 forming a light emitting portion having one aperture.

  Further, each of the frames 4 constituting the light emitting part with the third diameter is formed by forming the light emitting parts with the third diameter by connecting the opposite corners in a ring shape, and these frames 4 are: The frame 3 and 4 are connected to each other at the corners of the opposite frames 3 and 4 so as to circumscribe the periphery of each frame 3 forming the light emitting portion having the second diameter.

  And the surface light-emitting bodies 5, 6, and 7 mentioned later in each frame 2, 3, and 4 which comprise the light emission part of each said diameter are comprised so that a dome shape may be formed. That is, when the illuminating device 1 is suspended as shown in FIG. 1, the center part side of the illuminating device protrudes gently downward. In addition, the code | symbol 8 shown in FIG. 4 has shown the attachment part of the three wires 9 shown in FIG.

  FIGS. 5 and 6 illustrate an example of mounting the surface light emitters 5, 6, 7 on the frames 2, 3, 4 described above. In this embodiment, as shown in FIG. 5, one unit is constituted by a connecting body of each of the frames 2, 3, 4 that forms the light emitting portion having the first to third apertures. That is, 12 units of the coupling body shown in FIG. 5 are prepared, and these are connected in a ring shape, whereby the lighting device having the configuration shown in FIGS. 1 to 4 is formed.

  As shown in FIG. 5, a stainless plate is used for each of the frames 2, 3, and 4 constituting one unit, and a decorative process such as a hairline process is applied thereto. Each of the frames 2, 3 and 4 has window holes 2a, 3a and 4a formed in a substantially square shape, and functions as the surface light emitters 5, 6 and 7 from the back surface. The surface is attached so as to face the window holes 2a, 3a, 4a. Accordingly, the light emitting surfaces of the surface light emitters 5, 6, and 7 are attached so as to form a frame in each of the window holes 2a, 3a, and 4a.

  A sectional view of the one unit cut along the line AA shown in FIG. 5 is shown as B in FIG. As shown in FIG. 6B, with reference to the frame 2 that forms the light emitting portion of the first diameter, the frame 3 that forms the light emitting portion of the second diameter is bent around 15 degrees, and the third diameter The frame 4 forming the light emitting portion is further bent about 15 degrees in the same direction. Thereby, as above-mentioned, the surface light-emitting body 5,6,7 side in each flame | frame 2,3,4 is comprised so that a dome shape may be formed.

  FIG. 6 shows the relationship between the frames 2, 3, and 4 and the surface light emitters 5, 6, and 7 attached to the back surface thereof. As the surface light emitters 5, 6 and 7, organic EL elements are preferably used. As is well known, an organic EL element has a transparent electrode made of ITO or the like formed on a transparent substrate surface by, for example, a sputtering method. A light emitting functional layer made of an organic material and a metal back electrode mainly composed of a material such as aluminum can be formed thereon by forming a film using, for example, a vacuum deposition method.

  According to the organic EL element having this configuration, light from the light emitting functional layer is led out to the outside through the transparent electrode and the substrate made of a transparent material. The emission color of the organic EL element is generally preferably white, but various emission colors can be adopted according to preference by selecting a material for the light emitting functional layer.

  According to the above-described configuration, each of the surface light emitters 5, 6 and 7 constituting the light emitting portions of the first to third apertures is configured with a large and small 36, and therefore can be lit for each aperture or one aperture. A variety of lighting operations can be realized in addition to a blinking operation, such as intermittent lighting of the light emitting unit.

  As is clear from the above description, according to the illumination device of the present invention, the flat frame with the surface light emitters connected to each other in an annular shape forms a light emitting portion with one aperture, and the other similarly. Since the plurality of light-emitting portions having the same diameter are concentrically formed, an excellent decoration effect can be obtained as compared with the image of a conventional lighting device using a fluorescent lamp or a light bulb. Thus, the operational effects described in the column of the effect of the invention described above can be obtained.

  In the embodiment described above, each of the flat frame and the surface light emitters constituting the light emitting portions having the first to third diameters is formed of a square, but these shapes are, for example, circular. It can also be formed in other shapes, and similar effects can be obtained. Further, in the embodiment, the light emitting portions connected in an annular shape are formed in three different diameters, but the number of diameters can also be arbitrarily set.

  Furthermore, in the illumination device according to the present invention, an organic EL element is desirably used as the surface light emitter, but other than this, a surface light emitting element such as an inorganic EL element can also be used.

It is a front view of the state which applied the illuminating device concerning this invention to the hanging type | mold. It is a perspective view of the state seen from diagonally downward similarly. It is a bottom view similarly. It is a top view similarly. It is a front view which shows the example which united each flat frame. It is a block diagram explaining the example of mounting | wearing of the surface light emitter with respect to each frame which unitized.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Illuminating device 2-4 Frame 2a-4a Window hole 5-7 Surface light-emitting body (organic EL element)
9 Hanging wire

Claims (5)

  1.   A light emitting part having a first aperture formed by connecting a plurality of plate-like frames mounted with surface light emitters in a ring shape, and circumscribing each frame forming the light emitting part having the first aperture. A plurality of apertures including at least a light emitting portion having a second aperture formed by annularly connecting a plurality of plate-like frames attached with surface light emitters to each other. A lighting device characterized by that.
  2.   The lighting device according to claim 1, wherein the surface light emitter side in each frame forming the light emitting portion of each aperture is configured to form a dome shape.
  3.   3. The lighting device according to claim 1, wherein the number of frames constituting the light emitting portions having the respective diameters is set to be the same in the light emitting portions having the respective diameters.
  4.   The first to third caliber light emitting portions are configured to form the respective light emitting portions of each caliber in a square shape, and opposite corner portions of each frame are connected in an annular shape, The lighting device according to any one of claims 1 to 3, wherein light emitting portions having first to third diameters are respectively formed.
  5.   The lighting device according to any one of claims 1 to 4, wherein the surface light emitter is configured by an organic EL element.
JP2008049422A 2008-02-29 2008-02-29 Lighting device Expired - Fee Related JP4450331B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008049422A JP4450331B2 (en) 2008-02-29 2008-02-29 Lighting device

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2008049422A JP4450331B2 (en) 2008-02-29 2008-02-29 Lighting device
TW98104294A TWI472073B (en) 2008-02-29 2009-02-11 Lighting device
KR1020090015336A KR101535681B1 (en) 2008-02-29 2009-02-24 Lighting apparatus
EP09002852A EP2096352A3 (en) 2008-02-29 2009-02-27 Decorative lighting apparatus using organic electro-luminescent (EL) light sources
CN200910117960.5A CN101520151B (en) 2008-02-29 2009-02-27 Lighting apparatus
US12/396,322 US8550661B2 (en) 2008-02-29 2009-03-02 Lighting apparatus

Publications (2)

Publication Number Publication Date
JP2009206028A JP2009206028A (en) 2009-09-10
JP4450331B2 true JP4450331B2 (en) 2010-04-14

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JP2008049422A Expired - Fee Related JP4450331B2 (en) 2008-02-29 2008-02-29 Lighting device

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US (1) US8550661B2 (en)
EP (1) EP2096352A3 (en)
JP (1) JP4450331B2 (en)
KR (1) KR101535681B1 (en)
CN (1) CN101520151B (en)
TW (1) TWI472073B (en)

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JPWO2016042982A1 (en) * 2014-09-16 2017-06-29 コニカミノルタ株式会社 Light emitting device
JP6243579B1 (en) * 2016-12-02 2017-12-06 株式会社カネカ Planar light source and illumination device

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Also Published As

Publication number Publication date
TW200937696A (en) 2009-09-01
US8550661B2 (en) 2013-10-08
EP2096352A2 (en) 2009-09-02
TWI472073B (en) 2015-02-01
US20090219718A1 (en) 2009-09-03
KR20090093831A (en) 2009-09-02
EP2096352A8 (en) 2009-11-25
EP2096352A3 (en) 2010-05-19
KR101535681B1 (en) 2015-07-09
JP2009206028A (en) 2009-09-10
CN101520151B (en) 2014-08-20
CN101520151A (en) 2009-09-02

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